that heatsink deign looks similar to the one that ZALMAN have for the graphic cards heatsink segment
http://www.zalman.com/global/product/Product_Read.php?Idx=482
Sabertooth Z77 is a Thunderbolt Ready Motherboard , here is a photo close up from my Camera on Sabertooth Z77
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additional Information, Asus P8Z77-V Series Motherboard and Maximus V Gene are Thunderbolt Ready too
i just tested the catalyst 9.11 vs 9.10, i aborted the review because the resultswere very bad , the 9.11 driver shows 5~15 FPs drop in all games, about 1000 point in 3Dmark Vantage
i got the Driver benchmarked with Catalyst 9.8 driver, check my work at http://forums.tbreak.com/graphics-cards/63709-catalyst-9-9-analysis.html#post422884
just finished benching alot of games with the new Driver including HAWX, http://www.megamers.com/forums/graphics-cards/46770-catalyst-9-3-analysis.html#post385239
cable mangement couldev been alot better than this, and if i have that system within my hands i can do it for 250$ for assembly including cable mangement, you can see my work for local company who asked me to assemble thier PC last year with Bios configurations from here...